YamahaDX : Messages : 9436-9467 of 9618

Frank

Is there coherent activity on the data inputs or change in the waveforms taking place when playing the keyboard? It's dynamic not static, but sometimes you can see data ( 0-5V waveform) synchronized to activity, which if ok, might suggest the DAC is pooched if it has no output on pin 19, Check all the data pins, 2 through 18. They won't all look the same and some may look inactive, but will give you an indication if the DAC is getting data. You should see a change in data activity on the active inputs, when you mash a few keys down. The power supply voltages you mention, by the way, seem close enough. They are rarely perfectly symetrical, anyway.

Oscilloscopes can be a little intimidating. A little "scope-101" to help: On ch 1, set scope to AC mode, input sens to 500mV/DIV, time div to maybe .5mS, set trigger source to CH1, mode to auto or manual, adjust trigger level until the waveform stops flying-by from LtoR and you should be good to go. Once the trigger is locked on the waveform(stopped moving), you can change the horizontal resolution or zoom if you like, to get right in there, like a proctologist.......LOL. Also adjust the input sensivity to change the vertical scale. There is no perfect setting, only what works best for the waverform, you want to examine. make sure the probe ground is on a decent ground point- analog and digital grounds usually wind up at the same point, eventually. On U-grounded DX's the green chassis screw works fine.

Or practice first with the little test/ reference wave testpoint most scopes have on the front panel that usually pukes out a medium frequency 50% duty-cycle square wave, to be used to set the adjustable HF response of the old-style test probes. You'll get a feel for it eventually- adjust one thing at one time, to understand what it's doing or get one of those "idiot" guides to oscilloscopes at the library- once you get skilled with a scope, you hardly need a DMM.
Cheers,
Gregg Sheehan

--- On Fri, 11/20/09, Frank de Ruiter <frank.r.deruiter@...> wrote:

From: Frank de Ruiter <frank.r.deruiter@...>
Subject: Re: [YamahaDX] Re: No sound DX-7 II
To: YamahaDX@yahoogroups.com
Received: Friday, November 20, 2009, 6:07 AM

The 4558 is IC3, so these outputs are good then.

The -1V output doesn't change if I press some keys, it stays at -1V. On pin 26 I got 11.96V on pin 28 -12.16V and pin 22 has common ground. So the power on the DAC should be ok.

----- Original Message -----

From: narfman96

To: YamahaDX@yahoogroup s.com

Sent: Friday, November 20, 2009 2:57 AM

Subject: [YamahaDX] Re: No sound DX-7 II

If the 4558 was IC3 then it buffers the aftertouch on A (0-5v)and the pitch bend on B at 2.5v.

The Dac used is a PCM54HP. Pin-19 (VD) and pin-20 (PR) are connected to pin-21 (SUM) and pin-23 (IO) thru a 10k resistor (R50). This is the voltage output configuration. The -1 volt signal should change on pin-19. Is there a good +/- 12 volts on pins 26 & 28? Common ground on pin-22?

--- In YamahaDX@yahoogroup s.com, "Frank de Ruiter" <frank.r.deruiter@ ...> wrote:
>
> Hi Alan, I do have an old Philips scope and a decent DMM with scope function (don't know how to use a scope yet, but at least it is there), so that schouldn't be a problem. After the tip I did get from Gregg I checked the DAC output and the op-amp. The op-amp on board DM is of the type NJM4558D and I did get on output A 2,480V and on output B -231,2mV up to 5V depending how hard I pressed the keys.
> The output of the DAC (pin19) was -1.078V no matter if I pressed the keys or not.
>
> Frank
>
> ----- Original Message -----
> From: Alan Probandt
> To: YamahaDX@yahoogroup s.com
> Sent: Friday, November 20, 2009 1:44 AM
> Subject: Re: [YamahaDX] No sound DX-7 II
>
>
>
> In 'LogicLand' there are some weird old tricks, some work and some don't. For example, use a 74HC4040 (a 12 step divider, not a 12-step program) to divide +5V_0 logic clock signals from MegaHertz range to audio range. Then attach a small speaker through a 50-100 ohm resistor to the audio range output. An active logic signal in 500K-4MHz is going to produce a ripping sound in the audio range when divided 8 to 10 times. Touch the input probe to the logic pin in question (one on the CPU or memory). If you get a ripping sound, then there is active signal. No sound, no signal. The address and date lines will always have signal, but the logic control lines may not produce audio. If there is no signal and there should be, then check the continuity of the entire trace net.
> There might be a tiny hairline break in the solder that can be corrected by a quick touch of a hot iron tip.
> A trick to learn if CPU signals are active from when I was a poor student and DIY unemployed technician who couldn't afford a $50 voltmeter, let alone a Tektronix storage scope.
>
> What are the op-amps for that are on the Yamaha DAC chip? They are connected to the DAC alone. Their inputs are connected to the DAC. They are non-inverting buffers with a small cap attached, and their outputs go back into the DAC. Unusual.
>

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#9466

From: "GB" <grantbt@...>
Date: Fri Nov 20, 2009 3:55 pm
Subject: Again with the DX27 -- slider pot/knob

grantpbt

Offline

Anyone have any leads on where to get a data entry slider and cap (knob) for
a DX27 or similar?  Mine works but the shaft is sheared off at the panel (so
it still works but there's not much sticking out to grab on to).

GB

Reply | Forward | Messages in this Topic (2)

#9465

From: "Frank de Ruiter" <frank.r.deruiter@...>
Date: Fri Nov 20, 2009 2:07 pm
Subject: Re: Re: No sound DX-7 II

frankderuiter

Offline

The 4558 is IC3, so these outputs are good then.

The -1V output doesn't change if I press some keys, it stays at -1V. On pin 26 I got 11.96V on pin 28 -12.16V and pin 22 has common ground. So the power on the DAC should be ok.

----- Original Message -----

From: narfman96

To: YamahaDX@yahoogroups.com

Sent: Friday, November 20, 2009 2:57 AM

Subject: [YamahaDX] Re: No sound DX-7 II

If the 4558 was IC3 then it buffers the aftertouch on A (0-5v)and the pitch bend on B at 2.5v.

The Dac used is a PCM54HP. Pin-19 (VD) and pin-20 (PR) are connected to pin-21 (SUM) and pin-23 (IO) thru a 10k resistor (R50). This is the voltage output configuration. The -1 volt signal should change on pin-19. Is there a good +/- 12 volts on pins 26 & 28? Common ground on pin-22?

--- In YamahaDX@yahoogroups.com, "Frank de Ruiter" <frank.r.deruiter@...> wrote:
>
> Hi Alan, I do have an old Philips scope and a decent DMM with scope function (don't know how to use a scope yet, but at least it is there), so that schouldn't be a problem. After the tip I did get from Gregg I checked the DAC output and the op-amp. The op-amp on board DM is of the type NJM4558D and I did get on output A 2,480V and on output B -231,2mV up to 5V depending how hard I pressed the keys.
> The output of the DAC (pin19) was -1.078V no matter if I pressed the keys or not.
>
> Frank
>
> ----- Original Message -----
> From: Alan Probandt
> To: YamahaDX@yahoogroups.com
> Sent: Friday, November 20, 2009 1:44 AM
> Subject: Re: [YamahaDX] No sound DX-7 II
>
>
>
> In 'LogicLand' there are some weird old tricks, some work and some don't. For example, use a 74HC4040 (a 12 step divider, not a 12-step program) to divide +5V_0 logic clock signals from MegaHertz range to audio range. Then attach a small speaker through a 50-100 ohm resistor to the audio range output. An active logic signal in 500K-4MHz is going to produce a ripping sound in the audio range when divided 8 to 10 times. Touch the input probe to the logic pin in question (one on the CPU or memory). If you get a ripping sound, then there is active signal. No sound, no signal. The address and date lines will always have signal, but the logic control lines may not produce audio. If there is no signal and there should be, then check the continuity of the entire trace net.
> There might be a tiny hairline break in the solder that can be corrected by a quick touch of a hot iron tip.
> A trick to learn if CPU signals are active from when I was a poor student and DIY unemployed technician who couldn't afford a $50 voltmeter, let alone a Tektronix storage scope.
>
> What are the op-amps for that are on the Yamaha DAC chip? They are connected to the DAC alone. Their inputs are connected to the DAC. They are non-inverting buffers with a small cap attached, and their outputs go back into the DAC. Unusual.
>

#9464

From: "narfman96" <narfman96@...>
Date: Fri Nov 20, 2009 1:57 am
Subject: Re: No sound DX-7 II

narfman96

Offline

If the 4558 was IC3 then it buffers the aftertouch on A (0-5v)and the pitch bend
on B at 2.5v.

The Dac used is a PCM54HP. Pin-19 (VD) and pin-20 (PR) are connected to pin-21
(SUM) and pin-23 (IO) thru a 10k resistor (R50). This is the voltage output
configuration. The -1 volt signal should change on pin-19. Is there a good +/-
12 volts on pins 26 & 28? Common ground on pin-22?

--- In YamahaDX@yahoogroups.com, "Frank de Ruiter" <frank.r.deruiter@...> wrote:
>
> Hi Alan, I do have an old Philips scope and a decent DMM with scope function
(don't know how to use a scope yet, but at least it is there), so that
schouldn't be a problem. After the tip I did get from Gregg I checked the DAC
output and the op-amp. The op-amp on board DM is of the type NJM4558D and I did
get on output A 2,480V and on output B -231,2mV up to 5V depending how hard I
pressed the keys.
> The output of the DAC (pin19) was -1.078V no matter if I pressed the keys or
not.
>
> Frank
>
>   ----- Original Message -----
>   From: Alan Probandt
>   To: YamahaDX@yahoogroups.com
>   Sent: Friday, November 20, 2009 1:44 AM
>   Subject: Re: [YamahaDX] No sound DX-7 II
>
>
>
>   In 'LogicLand' there are some weird old tricks, some work and some don't. 
For example, use a 74HC4040 (a 12 step divider, not a 12-step program) to divide
+5V_0 logic clock signals from MegaHertz range to audio range.  Then attach a
small speaker through a 50-100 ohm resistor to the audio range output.  An
active logic signal in 500K-4MHz is going to produce a ripping sound in the
audio range when divided 8 to 10 times.  Touch the input probe to the logic pin
in question (one on the CPU or memory).  If you get a ripping sound, then there
is active signal.  No sound, no signal.  The address and date lines will always
have signal, but the logic control lines may not produce audio.  If there is no
signal and there should be, then check the continuity of the entire trace net.
>   There might be a tiny hairline break in the solder that can be corrected by
a quick touch of a hot iron tip.
>     A trick to learn if CPU signals are active from when I was a poor student
and DIY unemployed technician who couldn't afford a $50 voltmeter, let alone a
Tektronix storage scope.
>
>     What are the op-amps for that are on the Yamaha DAC chip?  They are
connected to the DAC alone. Their inputs are connected to the DAC. They are
non-inverting buffers with a small cap attached, and their outputs go back into
the DAC. Unusual.
>

#9463

From: "Frank de Ruiter" <frank.r.deruiter@...>
Date: Fri Nov 20, 2009 1:07 am
Subject: Re: No sound DX-7 II

frankderuiter

Offline

Hi Alan, I do have an old Philips scope and a decent DMM with scope function (don't know how to use a scope yet, but at least it is there), so that schouldn't be a problem. After the tip I did get from Gregg I checked the DAC output and the op-amp. The op-amp on board DM is of the type NJM4558D and I did get on output A 2,480V and on output B -231,2mV up to 5V depending how hard I pressed the keys.

The output of the DAC (pin19) was -1.078V no matter if I pressed the keys or not.

Frank

----- Original Message -----

From: Alan Probandt

To: YamahaDX@yahoogroups.com

Sent: Friday, November 20, 2009 1:44 AM

Subject: Re: [YamahaDX] No sound DX-7 II

In 'LogicLand' there are some weird old tricks, some work and some don't. For example, use a 74HC4040 (a 12 step divider, not a 12-step program) to divide +5V_0 logic clock signals from MegaHertz range to audio range. Then attach a small speaker through a 50-100 ohm resistor to the audio range output. An active logic signal in 500K-4MHz is going to produce a ripping sound in the audio range when divided 8 to 10 times. Touch the input probe to the logic pin in question (one on the CPU or memory). If you get a ripping sound, then there is active signal. No sound, no signal. The address and date lines will always have signal, but the logic control lines may not produce audio. If there is no signal and there should be, then check the continuity of the entire trace net.
There might be a tiny hairline break in the solder that can be corrected by a quick touch of a hot iron tip.
A trick to learn if CPU signals are active from when I was a poor student and DIY unemployed technician who couldn't afford a $50 voltmeter, let alone a Tektronix storage scope.

What are the op-amps for that are on the Yamaha DAC chip? They are connected to the DAC alone. Their inputs are connected to the DAC. They are non-inverting buffers with a small cap attached, and their outputs go back into the DAC. Unusual.

#9462

From: Alan Probandt <alan_probandt@...>
Date: Fri Nov 20, 2009 12:44 am
Subject: Re: No sound DX-7 II

alan_probandt

Offline

In 'LogicLand' there are some weird old tricks, some work and some don't.� For
example, use a 74HC4040 (a 12 step divider, not a 12-step program) to divide
+5V_0 logic clock signals from MegaHertz range to audio range.� Then attach a
small speaker through a 50-100 ohm resistor to the audio range output.� An
active logic signal in 500K-4MHz is going to produce a ripping sound in the
audio range when divided 8 to 10 times.� Touch the input probe to the logic pin
in question�(one on the CPU or memory).� If you get a ripping sound, then there
is active signal.� No sound, no signal.� The address and date lines will always
have signal, but the logic control lines may not produce audio.� If there is no
signal and there should be, then check the continuity of the entire trace net.�
  There might be a tiny hairline break in the solder that can be corrected by a
quick touch of a hot iron tip.
� A trick to learn if CPU signals are active from when I was a poor student and
DIY unemployed technician who couldn't afford a $50 voltmeter, let alone
a�Tektronix storage scope.
�
� What are the op-amps for that are on the Yamaha DAC chip?� They are connected
to the DAC alone.  Their inputs are connected to the DAC. They are non-inverting
buffers with a small cap attached, and their outputs go back into the DAC.
Unusual.

#9461

From: Gregg Sheehan <auddoc@...>
Date: Thu Nov 19, 2009 6:59 pm
Subject: Re: No sound DX-7 II

auddoc

Offline

Frank,

This is where you get out of troubleshooting ability, by not having test gear like DMMs and scopes, for measurement and analysis. A scope is required to see if you have the rudimentary things, like a clock signal, proper reset on the CPU (although if the display appears normal then both are not likely problems- I always quickly check everything from "left to right" like this, from habit) then check address and data lines, then check the DAC input and DAC out and/or DAC buffer to see if you have anything that far along. And actual numerical power supply values- both DC and AC component (noise)- all of this provides clues. All this presumes you have an idea of what "normal" looks like, of course.

If the DAC has good anaolg output, then everthing after that, is relatively easy to figure out, being in "analog-land". If you get nothing at the DAC output, it's obviously before that. DAC buffers can also fail- that's an opamp that follows the DAC. I don't recall if the DAC chip used here, is current or voltage out- anyone? If it's current, they use a buffer (or current/voltage converter) Is there a relay? Stupid question: Are the 1/4phone connectors broken on the rear output board where it's soldered? Is an output op-amp latched? -Should be very low DC voltage on the opamp output pins with a bi-polar power supply. Schematic anyone-- to help him out? I suppose you could always use the old-school signal-tracer method/ with the schematic, for tracing analog signals (by going backwards through the output circuit, with a bare lead( put a small capacitor in series-to block DC and ground the shield on both ends first) on any amlifier input- even a home stereo. NB.: there is no value listening to digital signals, they sound real ugly and contain enough high frequency content, to damage tweeters and amplifiers.Hope this helps.

Gregg Sheehan

--- On Thu, 11/19/09, Frank de Ruiter <frank.r.deruiter@...> wrote:

From: Frank de Ruiter <frank.r.deruiter@...>
Subject: Re: [YamahaDX] No sound DX-7 II
To: YamahaDX@yahoogroups.com
Received: Thursday, November 19, 2009, 8:33 AM

Hallo Marco,

I have checked it right away. Local setting is on, the DX is initialized so every setting should be ok. The sounds if have loaded through floppy and cartridge, but still no difference.

I've also tried an external keyboard. The programs do changes through midi, but again, no sound.

I think it is a problem inside the DX.

Frank

----- Original Message -----

From: Waradmiral

To: YamahaDX@yahoogroup s.com

Cc: <YamahaDX@yahoogroup s.com>

Sent: Thursday, November 19, 2009 5:06 PM

Subject: Re: [YamahaDX] No sound DX-7 II

Have you put back the sounds via sysex. And put the setting local on?

Have you tried to use an external keyboard ro get sound out of the yamaha?

Grtn,

Marco

Verstuurd vanaf mijn iPhone

Op 19 nov 2009 om 16:43 heeft "Frank de Ruiter" <frank.r.deruiter@ planet.nl> het volgende geschreven:\

Hello, my DX is driving me crazy. First I had the problem with a broken power supply. I did get many tips from this group (everyone a big thanks for that!) but still couldn't get the PSU to work. So I was looking for a universal one and I finally found a power supply for the DX. It is a Traco Power TOF 30-0522T 30W. Input 85-264Vac 50/60Hz and output 5V/4A, +12V/1,2A, -12V/0,5A so it should work. And it costs about €54.- I have it installed and it powers up nicely, except for the fact it doesn't produce any sound. Very frustrating!

I have read that it should be a 12V problem and I've checked all the connections and I do get the +/- 12V on the DM board, so no broken leads or whatever. I also checked with a 12v bulb and it lights perfect, so I really should have enough power.

All I get is white noise as you get from any amplifier, and you can hear the floppy drive work but no sound.

Does anyone know any suggestions what to check next?

Greetings, Frank

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#9460

From: "Frank de Ruiter" <frank.r.deruiter@...>
Date: Thu Nov 19, 2009 4:33 pm
Subject: Re: No sound DX-7 II

frankderuiter

Offline

Hallo Marco,

I have checked it right away. Local setting is on, the DX is initialized so every setting should be ok. The sounds if have loaded through floppy and cartridge, but still no difference.

I've also tried an external keyboard. The programs do changes through midi, but again, no sound.

I think it is a problem inside the DX.

Frank

----- Original Message -----

From: Waradmiral

To: YamahaDX@yahoogroups.com

Cc: <YamahaDX@yahoogroups.com>

Sent: Thursday, November 19, 2009 5:06 PM

Subject: Re: [YamahaDX] No sound DX-7 II

Have you put back the sounds via sysex. And put the setting local on?

Have you tried to use an external keyboard ro get sound out of the yamaha?

Grtn,

Marco

Verstuurd vanaf mijn iPhone

Op 19 nov 2009 om 16:43 heeft "Frank de Ruiter" <frank.r.deruiter@planet.nl> het volgende geschreven:\

Hello, my DX is driving me crazy. First I had the problem with a broken power supply. I did get many tips from this group (everyone a big thanks for that!) but still couldn't get the PSU to work. So I was looking for a universal one and I finally found a power supply for the DX. It is a Traco Power TOF 30-0522T 30W. Input 85-264Vac 50/60Hz and output 5V/4A, +12V/1,2A, -12V/0,5A so it should work. And it costs about €54.- I have it installed and it powers up nicely, except for the fact it doesn't produce any sound. Very frustrating!

I have read that it should be a 12V problem and I've checked all the connections and I do get the +/- 12V on the DM board, so no broken leads or whatever. I also checked with a 12v bulb and it lights perfect, so I really should have enough power.

All I get is white noise as you get from any amplifier, and you can hear the floppy drive work but no sound.

Does anyone know any suggestions what to check next?

Greetings, Frank

#9459

From: Waradmiral <waradmiral@...>
Date: Thu Nov 19, 2009 4:06 pm
Subject: Re: No sound DX-7 II

ahorse4all

Offline

Have you put back the sounds via sysex. And put the setting local on?

Have you tried to use an external keyboard ro get sound out of the yamaha?

Grtn,

Marco

Verstuurd vanaf mijn iPhone

Op 19 nov 2009 om 16:43 heeft "Frank de Ruiter" <frank.r.deruiter@...> het volgende geschreven:\

Hello, my DX is driving me crazy. First I had the problem with a broken power supply. I did get many tips from this group (everyone a big thanks for that!) but still couldn't get the PSU to work. So I was looking for a universal one and I finally found a power supply for the DX. It is a Traco Power TOF 30-0522T 30W. Input 85-264Vac 50/60Hz and output 5V/4A, +12V/1,2A, -12V/0,5A so it should work. And it costs about €54.- I have it installed and it powers up nicely, except for the fact it doesn't produce any sound. Very frustrating!

I have read that it should be a 12V problem and I've checked all the connections and I do get the +/- 12V on the DM board, so no broken leads or whatever. I also checked with a 12v bulb and it lights perfect, so I really should have enough power.

All I get is white noise as you get from any amplifier, and you can hear the floppy drive work but no sound.

Does anyone know any suggestions what to check next?

Greetings, Frank

#9458

From: "Frank de Ruiter" <frank.r.deruiter@...>
Date: Thu Nov 19, 2009 3:43 pm
Subject: No sound DX-7 II

frankderuiter

Offline

Hello, my DX is driving me crazy. First I had the problem with a broken power supply. I did get many tips from this group (everyone a big thanks for that!) but still couldn't get the PSU to work. So I was looking for a universal one and I finally found a power supply for the DX. It is a Traco Power TOF 30-0522T 30W. Input 85-264Vac 50/60Hz and output 5V/4A, +12V/1,2A, -12V/0,5A so it should work. And it costs about €54.- I have it installed and it powers up nicely, except for the fact it doesn't produce any sound. Very frustrating!

I have read that it should be a 12V problem and I've checked all the connections and I do get the +/- 12V on the DM board, so no broken leads or whatever. I also checked with a 12v bulb and it lights perfect, so I really should have enough power.

All I get is white noise as you get from any amplifier, and you can hear the floppy drive work but no sound.

Does anyone know any suggestions what to check next?

Greetings, Frank

#9457

From: Lee Borrell <templarser@...>
Date: Wed Nov 18, 2009 5:25 pm
Subject: Re: DX21/27/100

templarser

Offline

Got it - key shift - with power on!

--- On Wed, 18/11/09, Lee Borrell <templarser@...> wrote:

From: Lee Borrell <templarser@...>
Subject: Re: [YamahaDX] DX21/27/100
To: YamahaDX@yahoogroups.com
Date: Wednesday, 18 November, 2009, 17:24

I have the same version on my dx100.

V1.6 10Oct85 on my Dx21.

By the way - my welcome message seemed to get reset even when saying NO - anyone recall how to edit it,I am sure I had changed it.

--- On Wed, 18/11/09, paul.deco <paul.deco@yahoo. com> wrote:

From: paul.deco <paul.deco@yahoo. com>
Subject: [YamahaDX] DX21/27/100
To: YamahaDX@yahoogroup s.com
Date: Wednesday, 18 November, 2009, 14:36

The revision dates are good markers for the FM synthesizer timeline.
If you're the owner of a DX21/27/100, would you like to check yours?

Press and hold down voice buttons [1] and [2] while turning ON.
Then press [NO] for the 'Test Mode Entry?' factory reset procedure.

DX21 v1.4 16-May-85
DX27/100 v1.1 02-Aug-85

Any other version?

Paul

#9456

From: Lee Borrell <templarser@...>
Date: Wed Nov 18, 2009 5:24 pm
Subject: Re: DX21/27/100

templarser

Offline

I have the same version on my dx100.

V1.6 10Oct85 on my Dx21.

By the way - my welcome message seemed to get reset even when saying NO - anyone recall how to edit it,I am sure I had changed it.

--- On Wed, 18/11/09, paul.deco <paul.deco@...> wrote:

From: paul.deco <paul.deco@...>
Subject: [YamahaDX] DX21/27/100
To: YamahaDX@yahoogroups.com
Date: Wednesday, 18 November, 2009, 14:36

The revision dates are good markers for the FM synthesizer timeline.
If you're the owner of a DX21/27/100, would you like to check yours?

Press and hold down voice buttons [1] and [2] while turning ON.
Then press [NO] for the 'Test Mode Entry?' factory reset procedure.

DX21 v1.4 16-May-85
DX27/100 v1.1 02-Aug-85

Any other version?

Paul

#9455

From: "paul.deco" <paul.deco@...>
Date: Wed Nov 18, 2009 2:36 pm
Subject: DX21/27/100

paul.deco

Offline

The revision dates are good markers for the FM synthesizer timeline.
If you're the owner of a DX21/27/100, would you like to check yours?

Press and hold down voice buttons [1] and [2] while turning ON.
Then press [NO] for the 'Test Mode Entry?' factory reset procedure.

DX21 v1.4 16-May-85
DX27/100 v1.1 02-Aug-85

Any other version?

Paul

#9454

From: "charlie from PARRY" <charles.copp@...>
Date: Mon Nov 16, 2009 11:57 pm
Subject: Re: Re: all 32 banks sysex format description

charleschop

Offline

thanks bernard
helpfull insight.
i got a tx81z too!

any how , i been playing with my dx/tx816 so  you know which way i'm going .

charles

----- Original Message -----
From: "bernard.escaillas" <bernard@...>
To: <YamahaDX@yahoogroups.com>
Sent: Monday, November 16, 2009 6:08 AM
Subject: [YamahaDX] Re: all 32 banks sysex format description


> Hello,
>
> I am not sure about 6 operator DX, but my experience with 4 op family
might help (i have developped an editor for the Dx 11,21,27,100 & Tx81z
downloadable at www.midimetric.com).
>
> When transmiting single patch, the Dx uses the format known as VCED with
optional ACED extension.
> This format is not optimized for space ad contains a lot of 'holes' for
future revisions.
> When transmiting bank patch, the same data is packed as VMEM with optional
AMEM extension. An optimized format without gaps that takes up much less
space.
>
> Be carreful though, Dx7 is first generation of 6 ops family while the
Tx802 is second generation (like the Dx7 II). Second generation will most
probably use new parameters not recognized by the first generation.
>
> Good luck.
> Bernard
>
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>

#9453

From: "paul.deco" <paul.deco@...>
Date: Mon Nov 16, 2009 3:37 pm
Subject: Re: all 32 banks sysex format description

paul.deco

Offline

DX7 Voice (VCED) 155 bytes
DX7II Voice Additional (ACED) 49 bytes

DX7 Packed Voice (VMEM) 128 bytes x 32 = 4096 bytes
DX7II Packed Voice Additional (AMEM) 35 bytes x 32 = 1120 bytes

Some parameters are 'packed' into one byte:
LFO pitch modulation sensivity/LFO wave/LFO key sync
...

Complete DX7 Format list: DX200 manual page 135~137

Paul


--- In YamahaDX@yahoogroups.com, "charles c" <charles.copp@...> wrote:
>
> i been doing alot of sys ex stuff and now i am on to my dx/tx816
>
> i was wondering how the full banks are "knit" into the sys excluisive
message...is there any decoding as to retriving parameters?
>
> this aplies to a dx-7 or the tx816 full dump of 32 banks
>
> i know the dx usally sends for a single bank 154 bytes
>
> but this doesn't make sence
>
> because for all 32banks
>
>
> 32 single banks * 154 bytes  each =  4928 bytes total (then header and eox?)
>
> and
>  all the sysex length is  is 4104
> for my tx816 and my old dx7
>
>
> so what is the algo that converts the parameters into sys ex like ?
>
> i hope i am making sence
>
> charles
>

#9452

From: "bernard.escaillas" <bernard@...>
Date: Mon Nov 16, 2009 2:08 pm
Subject: Re: all 32 banks sysex format description

bernard.esca...

Offline

Hello,

I am not sure about 6 operator DX, but my experience with 4 op family might help
(i have developped an editor for the Dx 11,21,27,100 & Tx81z downloadable at
www.midimetric.com).

When transmiting single patch, the Dx uses the format known as VCED with
optional ACED extension.
This format is not optimized for space ad contains a lot of 'holes' for future
revisions.
When transmiting bank patch, the same data is packed as VMEM with optional AMEM
extension. An optimized format without gaps that takes up much less space.

Be carreful though, Dx7 is first generation of 6 ops family while the Tx802 is
second generation (like the Dx7 II). Second generation will most probably use
new parameters not recognized by the first generation.

Good luck.
Bernard

#9451

From: "charlie from PARRY" <charles.copp@...>
Date: Mon Nov 16, 2009 4:24 am
Subject: Re: all 32 banks sysex format description

charleschop

Offline

no , thanks , doesn't help ,

i am writing my own , but having many problems

charles

----- Original Message -----

From: Renata Dokmanovic

To: YamahaDX@yahoogroups.com

Sent: Sunday, November 15, 2009 8:14 PM

Subject: Re: [YamahaDX] all 32 banks sysex format description

Try FM-Alive DX Manager 3

Very good tool.

It can convert most formats.

Hope this helps...

From: charles c <charles.copp@...>
To: YamahaDX@yahoogroups.com
Sent: Mon, November 16, 2009 12:35:31 AM
Subject: [YamahaDX] all 32 banks sysex format description

i been doing alot of sys ex stuff and now i am on to my dx/tx816

i was wondering how the full banks are "knit" into the sys excluisive message...is there any decoding as to retriving parameters?

this aplies to a dx-7 or the tx816 full dump of 32 banks

i know the dx usally sends for a single bank 154 bytes

but this doesn't make sence

because for all 32banks

32 single banks * 154 bytes each = 4928 bytes total (then header and eox?)

and
all the sysex length is is 4104
for my tx816 and my old dx7

so what is the algo that converts the parameters into sys ex like ?

i hope i am making sence

charles

#9450

From: Renata Dokmanovic <renatadokmanovic@...>
Date: Mon Nov 16, 2009 4:14 am
Subject: Re: all 32 banks sysex format description

renatadokman...

Offline

Try FM-Alive DX Manager 3

Very good tool.

It can convert most formats.

Hope this helps...

From: charles c <charles.copp@...>
To: YamahaDX@yahoogroups.com
Sent: Mon, November 16, 2009 12:35:31 AM
Subject: [YamahaDX] all 32 banks sysex format description

i been doing alot of sys ex stuff and now i am on to my dx/tx816

i was wondering how the full banks are "knit" into the sys excluisive message...is there any decoding as to retriving parameters?

this aplies to a dx-7 or the tx816 full dump of 32 banks

i know the dx usally sends for a single bank 154 bytes

but this doesn't make sence

because for all 32banks

32 single banks * 154 bytes each = 4928 bytes total (then header and eox?)

and
all the sysex length is is 4104
for my tx816 and my old dx7

so what is the algo that converts the parameters into sys ex like ?

i hope i am making sence

charles

#9449

From: "charlie from PARRY" <charles.copp@...>
Date: Mon Nov 16, 2009 2:49 am
Subject: Re: all 32 banks sysex format description

charleschop

Offline

yes i know this allready , what i want to do is decipher the 128 bytes into
parameters
for output or input tr4ans form into a single voice dump to/from a dx7

to do so a user needs 155 bytes ,,
  where are these extra bytes from ???..155-128====27

my real questions is how does a person isolate and convert a segment of the
32patch bank dump so its reallocatable  being a single patch .

i need some data on the headers  and request for dump stuff too

charles


----- Original Message -----
From: "Eitan" <eitan1@...>
To: <YamahaDX@yahoogroups.com>
Sent: Sunday, November 15, 2009 6:29 PM
Subject: Re: [YamahaDX] all 32 banks sysex format description


The 32 voice DX7 sysex format consists of a six byte header (F0 43 00 09 20
00 h) + (128 packed bytes for each voice X 32) + checksum byte + end byte
(F7h) = 4104 bytes

They individual patches are not "knit" together. Datawise, they just follow
each other with no space in between.

--- On Sun, 11/15/09, charles c <charles.copp@...> wrote:

> From: charles c <charles.copp@...>
> Subject: [YamahaDX] all 32 banks sysex format description
> To: YamahaDX@yahoogroups.com
> Date: Sunday, November 15, 2009, 11:35 PM
> i been doing alot of sys ex stuff and
> now i am on to my dx/tx816
>
> i was wondering how the full banks are "knit" into the sys
> excluisive message...is there any decoding as to retriving
> parameters?
>
> this aplies to a dx-7 or the tx816 full dump of 32 banks
>
> i know the dx usally sends for a single bank 154 bytes
>
> but this doesn't make sence
>
> because for all 32banks
>
>
> 32 single banks * 154 bytes each = 4928 bytes
> total (then header and eox?)
>
> and
>  all the sysex length is is 4104
> for my tx816 and my old dx7
>
>
> so what is the algo that converts the parameters into sys
> ex like ?
>
> i hope i am making sence
>
> charles
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
> YamahaDX-fullfeatured@yahoogroups.com
>
>
>


------------------------------------

Yahoo! Groups Links

#9448

From: Eitan <eitan1@...>
Date: Mon Nov 16, 2009 2:29 am
Subject: Re: all 32 banks sysex format description

yamaha80s

Offline

The 32 voice DX7 sysex format consists of a six byte header (F0 43 00 09 20 00
h) + (128 packed bytes for each voice X 32) + checksum byte + end byte (F7h) =
4104 bytes

They individual patches are not "knit" together. Datawise, they just follow each
other with no space in between.

--- On Sun, 11/15/09, charles c <charles.copp@...> wrote:

> From: charles c <charles.copp@...>
> Subject: [YamahaDX] all 32 banks sysex format description
> To: YamahaDX@yahoogroups.com
> Date: Sunday, November 15, 2009, 11:35 PM
> i been doing alot of sys ex stuff and
> now i am on to my dx/tx816
>
> i was wondering how the full banks are "knit" into the sys
> excluisive message...is there any decoding as to retriving
> parameters?
>
> this aplies to a dx-7 or the tx816 full dump of 32 banks
>
> i know the dx usally sends for a single bank 154 bytes
>
> but this doesn't make sence���
>
> because for all 32banks
>
>
> 32 single banks * 154 bytes� each =� 4928 bytes
> total (then header and eox?)
>
> and
>  all the sysex length is� is 4104
> for my tx816 and my old dx7
>
>
> so what is the algo that converts the parameters into sys
> ex like ?
>
> i hope i am making sence
>
> charles
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
> � � YamahaDX-fullfeatured@yahoogroups.com
>
>
>

#9447

From: "plasticfriction" <plasticfriction@...>
Date: Mon Nov 16, 2009 1:39 am
Subject: Re: Novation Remote Zero SL Template for TX81Z

plasticfriction

Offline

Thank you but that doesn't help my situation. Does anyone else have any help
they can offer? Much appreciated!

--- In YamahaDX@yahoogroups.com, "michaelrosner_nyc" <michaelrosner_nyc@...>
wrote:
>
> Hi,
>
> I have a template for Mackie Control C4, if that can be of an interest to you.
>
> http://mapage.noos.fr/michael.rosner/C4DESIGN/index.html
>
> Regards,
>
>
> Michael
>
>
> --- In YamahaDX@yahoogroups.com, "plasticfriction" <plasticfriction@> wrote:
> >
> > Does anyone know if it's possible to make a template map for the tx81z on
the Novation Remote SL or if there are any already in existence?
> >
>

Reply | Forward | Messages in this Topic (3)

#9446

From: "charles c" <charles.copp@...>
Date: Sun Nov 15, 2009 11:35 pm
Subject: all 32 banks sysex format description

charleschop

Offline

i been doing alot of sys ex stuff and now i am on to my dx/tx816

i was wondering how the full banks are "knit" into the sys excluisive
message...is there any decoding as to retriving parameters?

this aplies to a dx-7 or the tx816 full dump of 32 banks

i know the dx usally sends for a single bank 154 bytes

but this doesn't make sence

because for all 32banks


32 single banks * 154 bytes  each =  4928 bytes total (then header and eox?)

and
  all the sysex length is  is 4104
for my tx816 and my old dx7


so what is the algo that converts the parameters into sys ex like ?

i hope i am making sence

charles

#9445

From: "michaelrosner_nyc" <michaelrosner_nyc@...>
Date: Fri Nov 13, 2009 2:56 pm
Subject: Re: Novation Remote Zero SL Template for TX81Z

michaelrosne...

Offline

Hi,

I have a template for Mackie Control C4, if that can be of an interest to you.

http://mapage.noos.fr/michael.rosner/C4DESIGN/index.html

Regards,


Michael


--- In YamahaDX@yahoogroups.com, "plasticfriction" <plasticfriction@...> wrote:
>
> Does anyone know if it's possible to make a template map for the tx81z on the
Novation Remote SL or if there are any already in existence?
>

Reply | Forward | Messages in this Topic (3)

#9444

From: "plasticfriction" <plasticfriction@...>
Date: Fri Nov 13, 2009 5:32 am
Subject: Novation Remote Zero SL Template for TX81Z

plasticfriction

Offline

Does anyone know if it's possible to make a template map for the tx81z on the
Novation Remote SL or if there are any already in existence?

Reply | Forward | Messages in this Topic (3)

#9443

From: "grantpbt" <grantbt@...>
Date: Fri Nov 13, 2009 4:33 am
Subject: DX27 DX100 v1.2 Eprom file

grantpbt

Offline

Hi,

I looked in the files area but couldn't see the ROM image for a DX27 v1.2.  I'm
refurb-ing a v1.1 unit and would also like to upgrade yhe eprom while it's open.
Anyone have it?

Reply | Forward | Messages in this Topic (1)

#9442

From: Matthieu Camus <matthieu.camus@...>
Date: Thu Nov 12, 2009 1:04 pm
Subject: DX7IID PLUS - Thanks for the info

uqeti

Offline

Hi,
Are you talking of these photos :)

http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363065_o.jpg
http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363082_o.jpg
http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363102_o.jpg
http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363123_o.jpg
http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363142_o.jpg
http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363153_o.jpg
http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363237_o.jpg
http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363471_o.jpg
http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363507_o.jpg
http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363530_o.jpg
http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363550_o.jpg
http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363568_o.jpg
http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363586_o.jpg
http://img.auctiva.com/imgdata/0/5/2/5/7/5/webimg/316363609_o.jpg

Bye,
    Matthieu

Reply | Forward | Messages in this Topic (2)

#9441

From: "fish2fish21227" <raltoja@...>
Date: Thu Nov 12, 2009 12:46 pm
Subject: DX7IID PLUS - Thanks for the info

fish2fish21227

Offline

Thanks for satisfying my curiosity.  Now I know that the DX7IID has an
aftermarket floppy disk installed.

Here is the Ebay link:
http://cgi.ebay.com/YAMAHA-DX7II-D-DX7IID-Algorithm-Synthesizer-DX7-II-NR_W0QQit\
emZ170404127071QQcmdZViewItemQQptZKeyboards_MIDI?hash=item27ace0a15f

The seller has about a dozen high resolution pictures of the DX7IID Plus. The
pictures are hosted by Activa which doesn't allow picture copying.  If the
pictures weren't copy protected I would put a couple of them in our photo
section.

In one of the photos you can see the left end piece of the synth.  There is
indeed a floppy disk door and eject button.

Thanks again for your help.

Fish

Reply | Forward | Messages in this Topic (2)

#9440

From: Patrick Wichrowski <patrickillian2@...>
Date: Thu Nov 12, 2009 2:23 am
Subject: Re: Question about Yamaha DX7IID "Plus"

patrickillia...

Offline

This is the model of my DX7II :D

2009/11/11 fish2fish21227 <raltoja@...>

�

There is currently an Ebay Listing a DX7IID that has the word "Plus" after the DX7IID. The seller (Technoempire) doesn't know if any additional features are offered by the "Plus." I assume it allows for storage of additional patches but I am only guessing.

Does anyone know what the "Plus" upgrade does?

I have heard of the Grey Matter E! upgrade and the Supermax upgrade for the DX7.

Fish

--
Patrick Wichrowski

tecladista e maluco de plant�o
www.myspace.com/patrickwichrowski

Reply | Forward | Messages in this Topic (5)

#9439

From: Wayne Kolybabi <waynekolybabi@...>
Date: Thu Nov 12, 2009 12:13 am
Subject: Re: Re: Question about Yamaha DX7IID "Plus"

waynekolybabi

Offline

Does anyone know, or has anyone ever been successful at adding a floppy drive to save additional patches, to the original DX7 ?

--- On Wed, 11/11/09, paul.deco <paul.deco@...> wrote:

From: paul.deco <paul.deco@...>
Subject: [YamahaDX] Re: Question about Yamaha DX7IID "Plus"
To: YamahaDX@yahoogroups.com
Received: Wednesday, November 11, 2009, 5:12 AM

Take a look at the pictures (item 170404127071) :

The DX7II-D plus has a floppy drive, the DX7II-D doesn't.
The DX7II-D plus button #16 has no name, the DX7II-FD Button #16 is labeled 'DISK'
Is the 'plus' a genuine Yamaha product? If not, wich company installed the upgrade?

more about the 'plus' version:
http://www.synthzon e.com/ubbs/ Forum26/HTML/ 001575.html

Paul

--- In YamahaDX@yahoogroup s.com, "fish2fish21227" <raltoja@... > wrote:
>
> There is currently an Ebay Listing a DX7IID that has the word "Plus" after the DX7IID. The seller (Technoempire) doesn't know if any additional features are offered by the "Plus." I assume it allows for storage of additional patches but I am only guessing.
>
> Does anyone know what the "Plus" upgrade does?
>
> I have heard of the Grey Matter E! upgrade and the Supermax upgrade for the DX7.
>
> Fish
>

Looking for the perfect gift? Give the gift of Flickr!

Reply | Forward | Messages in this Topic (5)

#9438

From: Eitan <eitan1@...>
Date: Wed Nov 11, 2009 8:48 pm
Subject: Re: Question about Yamaha DX7IID "Plus"

yamaha80s

Offline